Holzberlein, Deanne
The Haworth Press, 1988
Buku Teks SO
Holzberlein, Deanne
The Haworth Press, Inc., 1986
Buku Teks SO
Holzberlein, Deanne
Haworth Press, 1986
Buku Referensi
Mitchell, Anne M.
Neal-Schuman, 2005
Buku Teks SO
Olson, Nancy B.
Libraries Unlimited, 1988
Buku Teks SO